WO2013178849A1 - Mould conveyor - Google Patents

Mould conveyor Download PDF

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Publication number
WO2013178849A1
WO2013178849A1 PCT/ES2013/070326 ES2013070326W WO2013178849A1 WO 2013178849 A1 WO2013178849 A1 WO 2013178849A1 ES 2013070326 W ES2013070326 W ES 2013070326W WO 2013178849 A1 WO2013178849 A1 WO 2013178849A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold conveyor
jaws
conveyor according
support
longitudinal
Prior art date
Application number
PCT/ES2013/070326
Other languages
Spanish (es)
French (fr)
Inventor
César MARCO SERRANO
Francisco Javier Calvo Poza
Original Assignee
Loramendi, S. Coop.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ES201230812A external-priority patent/ES2442975B1/en
Priority claimed from ES201231454A external-priority patent/ES2456778B1/en
Application filed by Loramendi, S. Coop. filed Critical Loramendi, S. Coop.
Priority to PL13797860T priority Critical patent/PL2859971T4/en
Priority to ES13797860.7T priority patent/ES2637234T3/en
Priority to CN201380039778.7A priority patent/CN104768678B/en
Priority to US14/404,716 priority patent/US9365355B2/en
Priority to EP13797860.7A priority patent/EP2859971B1/en
Priority to IN2632MUN2014 priority patent/IN2014MN02632A/en
Priority to DK13797860.7T priority patent/DK2859971T3/en
Publication of WO2013178849A1 publication Critical patent/WO2013178849A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
    • B65G25/04—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D33/00—Equipment for handling moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes

Definitions

  • the present invention falls within the technical field of the casting of metal parts by casting in sandbikes and more particularly, in the sector of the mold or sandblasting conveyors that transport sandblades from of the molding machine.
  • An installation for casting metal parts by sandblasting generally comprises a vertical blow molding machine in which the specks are obtained and a casting facility in which the molten metal is poured into the specks. Once the molten metal has cooled and the molded part has solidified, it is demoulded by breaking the mold of sand that decomposes. The specks produced in the molding machine advance to the casting station and then to the demoulding zone by means of a series of conveyors.
  • a mold or speck conveyor is arranged, such as an automatic speck conveyor ("AMC") or a precision speck conveyor (“PMC”) that transports the specks to the next station working, such as a synchronized belt conveyor (“SBC”).
  • AMC automatic speck conveyor
  • PMC precision speck conveyor
  • SBC synchronized belt conveyor
  • a conventional mold or motor conveyor comprises a motorcycle inlet and a motorcycle outlet, and a support rack mounted on a frame and on which a plurality of motorcycles are supported in successively advanced positions, as well as a longitudinally movable jaw mechanism Regarding the support grid.
  • the jaw mechanism comprises two jaws lengths arranged on opposite sides along the support grid.
  • Each of the jaws is also transversely movable by a plurality of actuators that move the jaws transversely between a clamping position in which the spikes are prone to each other, and a releasing position in which they are not in contact with the specks
  • a reciprocating mechanism is connected to the jaw mechanism to advance the jaws when they are in their tightening position and to reverse the jaws when they are in their release position.
  • the reciprocating mechanism is hydraulic and comprises a hydraulic cylinder that acts on a transverse rocker that tilts on a fixed support.
  • the rocker arm is connected to two connecting rods that in turn are connected to the respective jaw mechanisms.
  • the retraction / extension movement of the hydraulic cylinder generates movements that are transmitted to the jaw mechanism in the form of linear reciprocating movements.
  • the reciprocating mechanism is usually arranged at the exit of the conveyor of specks.
  • a mold or motorcycle conveyor with a motorcycle entry zone and a motorcycle exit zone comprising a frame on which a support grid for supporting a plurality of molds in successively advanced positions, a longitudinally movable jaw mechanism with respect to the support grill, and comprising longitudinal jaws arranged on opposite sides along the support grid, at least one being of the jaws transversely movable by a plurality of actuators between a clamping position in which the jaws are capable of imprisoning the spikes with each other, and a releasing position in which the jaws do not imprison the molds, a reciprocating mechanism to make advance the jaw mechanism when the jaws are in their tightening position and to make retract the jaw mechanisms when the jaws are in their release position, characterized in that the jaw
  • the mold conveyor according to the present invention may be provided with a conveyor device, comprising a waste conveyor belt propelled, for example, by an electric motor, and arranged under the support grid, preferably along the entire of the motorcycle conveyor including its entry and exit zones.
  • the conveyor belt can be guided on transverse rollers whose ends are rotatably mounted on an axial frame.
  • the axial frame can be mounted on support legs.
  • This waste conveyor belt is intended to collect sand that emerges from the motes that fall down the support grid during the transport of the motes.
  • the waste conveyor belt is disposed at least below the thrust carriage.
  • the linear thrust system comprises a single linear thrust element that acts on a transverse part of the thrust carriage.
  • This transverse part of the push carriage can be a front cross member provided with a rear transverse recess in which the push bar is coupled.
  • the propellant element may be mounted on a structure of a molding machine that delivers the specks to the speck conveyor, and may comprise a longitudinal spindle connected to the push bar and driven by an electric motor, or a longitudinal rack bar connected to the push bar and a pinion that engages in the rack driven by an electric motor.
  • the propellant or the drive means are in the structure of the molding machine, it should be understood that it is in an area attached to said molding machine or included as a part of the molding machine, for which being this molding machine preserved from the entry of dirt or remains of molding sand, these drive means will be preserved from deterioration premature to be in a controlled area of the dirt entrance, extending the maintenance periods of the installation and the maintenance cost of the machine.
  • the push carriage comprises two side arms joined by at least one rear cross member and a front cross member located below the support grid.
  • Each of the lateral arms has a longitudinal guided external guide rib in a longitudinal guided passage located in the support structure.
  • the support structure may comprise upper side plates mounted on respective pairs of side supports and because on each side plate upper and lower rollers are mounted which define the longitudinal guide passage in which the respective guide is guided. guiding rib of the thrust carriage.
  • Each side plate can have a window in which a horizontal roller with rotation capacity is mounted on a vertical axis of rotation that contacts an external surface of the respective external guide rib thus providing a lateral guidance of the thrust carriage.
  • the pairs of lateral supports can be joined by a bridge on which the support grill is supported.
  • the bridge can be comprised of a rear cross member and a front cross member, optionally joined by two internal stringers.
  • the push bar extends through the rear cross member and the front cross member.
  • the push bar is guided longitudinally in guiding elements mounted on the frame.
  • At least some of the guiding elements may be hollow bodies with respective axial cavities through which the push bar passes.
  • a longitudinal protective plate arranged above the push bar and the guiding elements.
  • the push carriage can comprise two side plates connected to the jaws, and the side plates of the push carriage can be joined together by a crossbar connected to each linear push element, and comprise upper parts, each upper part being connected to one of the jaws through an inner upper connecting rod, and the inner upper connecting rod comprising a first end part articulated to said upper part and a second end part articulated to the jaw.
  • Figure 1 is a perspective view of an embodiment of a molding installation comprising a conveyor according to an embodiment of the present invention
  • Figure 2 is a side elevational view of the installation with the speck conveyor shown in Figure 1
  • Figure 3 is a side elevation view of the other side of the installation shown in Figure 2
  • Figure 4 is a partial side elevation view of the side of the conveyor shown in Figure 2
  • Figure 5 is a partial side elevation view of the side of the conveyor shown in Figure 3
  • Figure 6 is a partial top plan view of the motorcycle conveyor shown in Figure 1
  • Figure 7 is a partial bottom plan view of the motorcycle conveyor shown in Figure 1
  • Figure 8 is a top plan view of the structure of the molding machine shown in Figure 1
  • Figure 9 is a perspective view of the entrance area of the speck conveyor shown in Figure 1
  • Figure 10 is an antero-lateral perspective view of the support structure located in the exit area of the belt conveyor to the synchronized belt conveyor, in accordance with Figure 1
  • Figure 1 1 is a perspective view of the entrance area of the
  • the motor conveyor -1 - of the present invention comprises an input area -1 to - through which motorcycles (not shown in the figures) received from a molding machine comprising a structure -2-, and an exit zone -1b- from which the specks are delivered to a following station, for example to a conventional synchronized belt conveyor -3- comprising a conveyor belt -3a- and side protective plates -3b- that extend along the conveyor belt -3a-.
  • a gantry -5- is arranged that holds the upper parts of the successive motorcycles as they leave the molding machine.
  • the support grid -4- comprises a plurality of longitudinal rod bars -4a- fixedly mounted on a frame comprising lower side beams -6- mounted between respective lateral support columns -7-.
  • a front transverse plate -4b- is mounted on the front ends of the longitudinal grill bars -4a-.
  • respective transversely movable jaws -8, 9- extend forming part of a longitudinally movable jaw mechanism with respect to the support grill -4-.
  • the jaws -8, 9- are composed of respective plurality vertical clamping plates longitudinally aligned and connected to each other.
  • the jaws comprise respective delivery jaws -8a, 9a- intended to deliver successive specks to the synchronized belt conveyor -3-.
  • the longitudinal spindle -12- is arranged at the head of the structure of the molding machine -2-, that is, in an area before the inlet area -1 a- of the conveyor -1 -, and connected to the Thrust carriage -25- by means of a longitudinally-movable longitudinal push-15-bar and mounted on the frame in a lower plane than the support grid.
  • the push bar -15- is composed of a plurality of longitudinal sections, connected to each other, and in turn is connected by one of its ends to the spindle -12- by means of a coupling -16-.
  • the push bar -15- is longitudinally guided in axial recesses of guide elements -17- mounted on support crossbars -18- mounted between the columns -7- of lateral support.
  • the U-1 frames 1 - are joined by longitudinal stabilizer bars -19- lateral, The push bar -15- passes through the free space between the vertical branches and the upper end -1 I b- of the U-frames - eleven -.
  • a conveyor device -28- comprising a waste conveyor belt -28a- propelled by an electric motor (not shown in the figures) and guided on transverse rollers -28b- whose ends are rotatably mounted on an axial frame -28c- which in turn is mounted on support legs -28d-.
  • the waste conveyor belt-28a- collects sand that is detached from the specks that fall between the grill bars -4a- during the transportation of the specks.
  • a longitudinal protective plate -14- is provided to protect the push bar -15- and the guiding elements -17- against the fall of sand and liquid metal.
  • the motor conveyor -1 - further comprises a support structure -24- attached to the lower stringers -6- of the frame in the exit zone -1 a- of the motor transporter -1 -.
  • This support structure -24- comprises two pairs of lateral supports -24a- whose upper parts are joined together by a bridge formed by a rear cross member -24b-, a front cross member -24c- and two inner stringers -24d-.
  • the rear and front crossbars -24b, 24c- are provided with respective longitudinally aligned passages.
  • respective annular bearings -30- aligned with the mentioned steps are fitted in the front part of the front cross member -24c- and in the rear part of the rear cross member -24b-.
  • each pair of lateral supports -24a- are joined by a junction plate -24k- on which a base plate -24I- integral with a lateral support plate - 24e- is mounted.
  • the thrust carriage -25- comprises two longitudinal lateral arms -25a- whose end portions are connected to each other respectively by a front cross member -25d- and a rear cross member -25e- which are located in a plane inferior to the horizontal plane in the which extend the lateral arms -25a-.
  • a transverse recess -25f- is provided, which is also arranged below the horizontal plane of the lateral arms -25a-.
  • the transverse recess -25f- is provided with a coupling step -25g- for the coupling of the push bar -15-.
  • each side arm -25a- there is a support roller -31 - for the coupling of a connecting arms -32- which is used to connect the exit zone -1 b- of the motor conveyor -1 - with the synchronized belt conveyor -3-.
  • Each of the lateral arms -25a- also has an outer guide rib -25b- which extends from its rear end towards its front end.
  • the thrust carriage -25- moves in the longitudinal guide passage defined between the inner sheaves -24f- of the support structure -24- guided by the outer guiding ribs -25b-.
  • the horizontal rollers -26- rest on the external surface of the respective external guide rib -25b- thus providing lateral guidance of the thrust carriage -25-.
  • the push carriage -25- comprises two lug elements -25c-, comprising both upper parts and lower parts.
  • the lower part of each side plate -25c- is integral with one of the lateral arms -25a-, while the upper part of each lug element -25c- is articulated by a front joint -27a- to a first end of a connecting rod -27- jaw.
  • the second end of the connecting rod -27- is in turn articulated externally in one of the delivery jaws -8a, 9a- by a rear articulation.
  • the lower part of each lug element -25c- is integral with one of the lateral arms -25a-.
  • each side plate -14a- is articulated to a first end of an internal upper connecting rod -28- whose opposite end is in turn articulated externally in one of the jaws -8, 9-.
  • the upper part of each side plate -14a- is articulated to one of the lug elements -25d- by means of an external upper connecting rod -29- (figure 17).
  • the corresponding joints comprise respective pins -30- that constitute transverse axes of rotation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Reciprocating Conveyors (AREA)
  • Chain Conveyers (AREA)

Abstract

The invention relates to a conveyor comprising: a frame having a supporting grille (4) mounted therein, and a clamping mechanism which can move longitudinally in relation to the supporting grille (4) and which comprises longitudinal clamps (8, 8a; 9, 9a). The conveyor is characterised in that: the clamps (8, 8a; 9, 9a) comprise a pair of delivery clamps (8a, 9a); the push device is a push carriage (25) connected to the actuation means via a linear push system comprising at least one linear push element including a driving element connected to the actuation means and disposed in a zone upstream of the inlet area (1a) of the mould conveyor (1) and a longitudinal push bar (15) that extends linearly below the supporting grille (4); and the push carriage (25) is guided horizontally to perform a horizontal forward and backward movement.

Description

TRANSPORTADOR DE MOLDES  MOLD CONVEYOR
CAMPO TÉCNICO DE LA INVENCIÓN La presente invención se encuadra en el campo técnico de las instalaciones de fundición de piezas metálicas por colada en motas de arena y más particularmente, en el sector de los transportadores de moldes o motas de arena que transportan motas de arena procedentes de la máquina de moldeo. ANTECEDENTES DE LA INVENCIÓN TECHNICAL FIELD OF THE INVENTION The present invention falls within the technical field of the casting of metal parts by casting in sandbikes and more particularly, in the sector of the mold or sandblasting conveyors that transport sandblades from of the molding machine. BACKGROUND OF THE INVENTION
Una instalación de fundición de piezas metálicas por colada en motas de arena, comprende generalmente una máquina de moldeo vertical por soplado en el que se obtienen las motas y una instalación de colado en el que vierte el metal fundido en las motas. Una vez enfriado el metal fundido y solidificada la pieza moldeada, se procede al desmoldeo de la misma mediante ruptura del molde de arena que se descompone. Las motas producidas en la máquina de moldeo avanzan hasta la estación de colada y posteriormente a la zona de desmoldeo mediante una serie de transportadores. An installation for casting metal parts by sandblasting, generally comprises a vertical blow molding machine in which the specks are obtained and a casting facility in which the molten metal is poured into the specks. Once the molten metal has cooled and the molded part has solidified, it is demoulded by breaking the mold of sand that decomposes. The specks produced in the molding machine advance to the casting station and then to the demoulding zone by means of a series of conveyors.
En la salida de la máquina de moldeo está dispuesto un transportador de moldes o motas, como por ejemplo un transportador de motas automático ("AMC") o un transportador de motas de precisión ("PMC") que transportan las motas a la siguiente estación de trabajo, como por ejemplo un transportador de cinta sincronizado ("SBC"). El transportador de moldes o motas tiene que ir sincronizado con la salida de las motas formadas en la máquina de moldeo, a fin de que las motas queden dispuestas en una hilera precisa, y además puedan ser entregados a la siguiente estación de trabajo. Un transportador de moldes o motas convencional comprende una entrada de motas y una salida de motas, y una parrilla de soporte montada en un bastidor y en la que se apoya una pluralidad de motas en posiciones sucesivamente avanzadas, así como un mecanismo de mordazas longitudinalmente desplazable respecto de la parrilla de soporte. El mecanismo de mordazas comprende sendas mordazas longitudinales dispuestas en lados opuestos a lo largo de la parrilla de soporte. Cada una de las mordazas es también transversalmente desplazable por una pluralidad de actuadores que desplazan las mordazas transversalmente entre una posición de apriete en la que son susceptibles de aprisionar las motas entre sí, y una posición de liberación en la que no están en contacto con las motas. Un mecanismo de vaivén está conectado al mecanismo de mordazas para hacer avanzar las mordazas cuando están en su posición de apriete y para hacer retroceder las mordazas cuando están en su posición de liberación. En los transportadores de moldes o motas convencionales, el mecanismo de vaivén es hidráulico y comprende un cilindro hidráulico que actúa sobre un balancín transversal que bascula sobre un apoyo fijo. El balancín está conectado a sendas bielas que a su vez están conectadas a los respectivos mecanismos de mordaza. El movimiento de retracción/extensión del cilindro hidráulico genera movimientos que se transmiten al mecanismo de mordazas en forma de movimientos de vaivén lineales. Para reducir el riesgo de daños a las motas (rellenas de metal fundido) y evitar problemas de sincronismo que pueden conducir a que se abran las columnas de motas que salen empujados de la máquina de moldeo, el mecanismo de vaivén está habitualmente dispuesto en la salida del transportador de motas. At the exit of the molding machine, a mold or speck conveyor is arranged, such as an automatic speck conveyor ("AMC") or a precision speck conveyor ("PMC") that transports the specks to the next station working, such as a synchronized belt conveyor ("SBC"). The conveyor of molds or specks has to be synchronized with the output of the specks formed in the molding machine, so that the specks are arranged in a precise row, and can also be delivered to the next workstation. A conventional mold or motor conveyor comprises a motorcycle inlet and a motorcycle outlet, and a support rack mounted on a frame and on which a plurality of motorcycles are supported in successively advanced positions, as well as a longitudinally movable jaw mechanism Regarding the support grid. The jaw mechanism comprises two jaws lengths arranged on opposite sides along the support grid. Each of the jaws is also transversely movable by a plurality of actuators that move the jaws transversely between a clamping position in which the spikes are prone to each other, and a releasing position in which they are not in contact with the specks A reciprocating mechanism is connected to the jaw mechanism to advance the jaws when they are in their tightening position and to reverse the jaws when they are in their release position. In conventional mold or motor conveyors, the reciprocating mechanism is hydraulic and comprises a hydraulic cylinder that acts on a transverse rocker that tilts on a fixed support. The rocker arm is connected to two connecting rods that in turn are connected to the respective jaw mechanisms. The retraction / extension movement of the hydraulic cylinder generates movements that are transmitted to the jaw mechanism in the form of linear reciprocating movements. To reduce the risk of damage to the motes (filled with molten metal) and avoid synchronization problems that can lead to the opening of the columns of motes pushed out of the molding machine, the reciprocating mechanism is usually arranged at the exit of the conveyor of specks.
Si bien los transportadores convencionales ofrecen un sincronismo de transporte razonable, presentan inconvenientes relacionados con la actuación y el mantenimiento del cilindro hidráulico y por el hecho de que el balancín es un elemento transversal expuesto a la caída de arena proveniente de las motas y que impide la disposición de elementos de limpieza de arena, como por ejemplo una banda de extracción de arena que se extienda debajo de la totalidad del transportador, para la limpieza automática de la zona baja del transportador. Although conventional conveyors offer reasonable transport synchronism, they have drawbacks related to the operation and maintenance of the hydraulic cylinder and the fact that the rocker arm is a transverse element exposed to the drop of sand coming from the motes and that prevents provision of sand cleaning elements, such as a sand extraction strip that extends below the entire conveyor, for automatic cleaning of the lower area of the conveyor.
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
A ¡o largo de la descripción y reivindicaciones, nos referiremos indistintamente a ¡os transportadores de moldes y ¡os transportadores de motas como objetos similares a efectos de la patente, por lo que se utilizará un término u otro o ambos indistintamente La presente invención tiene por objeto superar los inconvenientes del estado de la técnica más arriba detallados, mediante un transportador de moldes o motas con una zona de entrada de motas y una zona de salida de motas, que comprende un bastidor en el que está montada una parrilla de soporte para apoyo de una pluralidad de moldes en posiciones sucesivamente avanzadas, un mecanismo de mordazas longitudinalmente desplazable respecto de la parrilla de soporte, y comprendiendo sendas mordazas longitudinales dispuestas en lados opuestos a lo largo de la parrilla de soporte, siendo al menos una de las mordazas transversalmente desplazable por una pluralidad de actuadores entre una posición de apriete en la que las mordazas son susceptibles de aprisionar las motas entre sí, y una posición de liberación en la que las mordazas no aprisionan los moldes, un mecanismo de vaivén para hacer avanzar el mecanismo de mordazas cuando las mordazas están en su posición de apriete y para hacer retroceder los mecanismos de mordazas cuando las mordazas se encuentran en su posición de liberación, caracterizado porque las mordazas comprenden una pareja de mordazas de entrega dispuestas en la zona de salida del transportador de moldes; el mecanismo de vaivén comprende un dispositivo de empuje dispuesto en la zona de salida del transportador de moldes, comprendiendo el dispositivo de empuje sendos elementos de orejeta articulados a las mordazas de entrega mediante sendas bielas de tiro de mordaza y estando conectado el dispositivo de empuje a medios de accionamiento que confieren movimiento de vaivén al dispositivo de empuje; el dispositivo de empuje es un carro de empuje conectado a los medios de accionamiento mediante un sistema de empuje lineal que comprende al menos un elemento lineal de empuje; que comprende un elemento propulsor conectado a los medios accionamiento y dispuesto en una zona anterior a la zona de entrada del transportador de moldes, y una barra de empuje longitudinal que conecta el elemento propulsor al carro de empuje y que se extiende linealmente debajo de la parrilla de soporte; el carro de empuje está guiado horizontalmente en una estructura de soporte para realizar un movimiento de avance y retroceso horizontal. Throughout the description and claims, we will refer indistinctly to mold conveyors and motorcycle conveyors as similar objects for the purposes of the patent, so that one term or another or both will be used interchangeably The object of the present invention is to overcome the drawbacks of the state of the art detailed above, by means of a mold or motorcycle conveyor with a motorcycle entry zone and a motorcycle exit zone, comprising a frame on which a support grid for supporting a plurality of molds in successively advanced positions, a longitudinally movable jaw mechanism with respect to the support grill, and comprising longitudinal jaws arranged on opposite sides along the support grid, at least one being of the jaws transversely movable by a plurality of actuators between a clamping position in which the jaws are capable of imprisoning the spikes with each other, and a releasing position in which the jaws do not imprison the molds, a reciprocating mechanism to make advance the jaw mechanism when the jaws are in their tightening position and to make retract the jaw mechanisms when the jaws are in their release position, characterized in that the jaws comprise a pair of delivery jaws arranged in the outlet area of the mold conveyor; The reciprocating mechanism comprises a pushing device disposed in the exit area of the mold conveyor, the pushing device comprising two lug elements articulated to the delivery jaws by means of two jaw pull rods and the pushing device being connected to drive means that confer reciprocating motion to the pushing device; The pushing device is a pushing car connected to the drive means by means of a linear pushing system comprising at least one linear thrust element; comprising a propellant element connected to the drive means and arranged in an area anterior to the inlet area of the mold conveyor, and a longitudinal thrust bar that connects the propellant element to the thrust carriage and extends linearly under the grill of support; The push carriage is guided horizontally in a support structure to perform a horizontal forward and reverse movement.
El transportador de moldes conforme a la presente invención puede estar dotado de un dispositivo transportador, que comprende una cinta transportadora de residuos propulsada, por ejemplo, por un motor eléctrico, y dispuesta debajo de la parrilla de soporte, preferentemente a lo largo de la totalidad del transportador de motas incluyendo sus zonas de entrada y salida. La cinta transportadora puede estar guiada sobre rodillos transversales cuyos extremos están giratoriamente montados en un bastidor axial. El bastidor axial puede estar montado sobre patas de apoyo. Esta cinta transportadora de residuos está destinada a recoger arena que se desprende de las motas que caen por la parrilla de soporte durante el transporte de las motas. Preferentemente, la cinta transportadora de residuos está dispuesta al menos debajo del carro de empuje. The mold conveyor according to the present invention may be provided with a conveyor device, comprising a waste conveyor belt propelled, for example, by an electric motor, and arranged under the support grid, preferably along the entire of the motorcycle conveyor including its entry and exit zones. The conveyor belt can be guided on transverse rollers whose ends are rotatably mounted on an axial frame. The axial frame can be mounted on support legs. This waste conveyor belt is intended to collect sand that emerges from the motes that fall down the support grid during the transport of the motes. Preferably, the waste conveyor belt is disposed at least below the thrust carriage.
Preferentemente, el sistema de empuje lineal comprende un único elemento lineal de empuje que actúa sobre una parte transversal del carro de empuje. Esta parte transversal del carro de empuje puede ser un travesaño frontal provisto con un cajeado transversal trasero en el que está acoplada la barra de empuje. Preferably, the linear thrust system comprises a single linear thrust element that acts on a transverse part of the thrust carriage. This transverse part of the push carriage can be a front cross member provided with a rear transverse recess in which the push bar is coupled.
El elemento propulsor puede estar montado en una estructura de una máquina de moldeo que entrega las motas al transportador de motas, y puede comprender un husillo longitudinal conectado a la barra empuje y accionado por un motor eléctrico, o una barra de cremallera longitudinal conectada a la barra empuje y un piñón que engrana en la cremallera accionado por un motor eléctrico. The propellant element may be mounted on a structure of a molding machine that delivers the specks to the speck conveyor, and may comprise a longitudinal spindle connected to the push bar and driven by an electric motor, or a longitudinal rack bar connected to the push bar and a pinion that engages in the rack driven by an electric motor.
Cuando se dice que el elemento propulsor o los medios de accionamiento se encuentran en la estructura de la máquina de moldeo se debe entender que está en una zona anexa a dicha maquina de moldeo o incluido como una parte de la máquina de moldeo, para lo cual al estar esta máquina de moldeo preservada de la entrada de suciedad o restos de arena de moldeo, estos medios de accionamiento estarán preservados de un deterioro prematuro por estar en un recinto controlado de la entrada de suciedad, dilatando los periodos de mantenimiento de la instalación y el coste de mantenimiento de la máquina. When it is said that the propellant or the drive means are in the structure of the molding machine, it should be understood that it is in an area attached to said molding machine or included as a part of the molding machine, for which being this molding machine preserved from the entry of dirt or remains of molding sand, these drive means will be preserved from deterioration premature to be in a controlled area of the dirt entrance, extending the maintenance periods of the installation and the maintenance cost of the machine.
En una realización preferente de la invención, el carro de empuje comprende sendos brazos laterales unidos por al menos un travesaño posterior y un travesaño frontal ubicados debajo de la parrilla de soporte. Cada uno de los brazos laterales presenta un nervio de guiado exterior longitudinal guiado en un paso de guiado longitudinal localizado en la estructura de soporte. Según esta realización preferente, la estructura de soporte puede comprender sendas placas laterales superiores montadas en respectivas parejas de soportes laterales y porque en cada placa lateral están montadas roldanas superiores e inferiores que entre sí definen el paso de guiado longitudinal en el que se guía el respectivo nervio de guiado del carro de empuje. Cada placa lateral puede presentar una ventana en la que está montado un rodillo horizontal con capacidad de giro en un eje de giro vertical que contacta una superficie externa del respectivo nervio de guiado externo proporcionando así un guiado lateral del carro de empuje. In a preferred embodiment of the invention, the push carriage comprises two side arms joined by at least one rear cross member and a front cross member located below the support grid. Each of the lateral arms has a longitudinal guided external guide rib in a longitudinal guided passage located in the support structure. According to this preferred embodiment, the support structure may comprise upper side plates mounted on respective pairs of side supports and because on each side plate upper and lower rollers are mounted which define the longitudinal guide passage in which the respective guide is guided. guiding rib of the thrust carriage. Each side plate can have a window in which a horizontal roller with rotation capacity is mounted on a vertical axis of rotation that contacts an external surface of the respective external guide rib thus providing a lateral guidance of the thrust carriage.
Conforme a esta realización preferente, las parejas de soportes laterales pueden estar unidas por un puente sobre el que se apoyo la parilla de soporte. El puente puede estar comprendido por un travesaño trasero y un travesaño delantero, opcionalmente unidos por sendos largueros interiores. En este caso, la barra de empuje se extiende a través del travesaño trasero y el travesaño delantero. According to this preferred embodiment, the pairs of lateral supports can be joined by a bridge on which the support grill is supported. The bridge can be comprised of a rear cross member and a front cross member, optionally joined by two internal stringers. In this case, the push bar extends through the rear cross member and the front cross member.
Preferentemente, la barra de empuje está guiada longitudinalmente en elementos de guiado montados en el bastidor. Al menos algunos de los elementos de guiado pueden ser cuerpos huecos con respectiva oquedades axiales por las que pasa la barra de empuje. Preferably, the push bar is guided longitudinally in guiding elements mounted on the frame. At least some of the guiding elements may be hollow bodies with respective axial cavities through which the push bar passes.
Para proteger la barra de empuje y, en su caso, los elementos de guiado frente a la caída de arena y de metal desde la parilla de soporte, puede estar prevista una chapa protectora longitudinal dispuesta encima de la barra de empuje y de los elementos de guiado. To protect the push bar and, where appropriate, the guiding elements from falling sand and metal from the support grill, a longitudinal protective plate arranged above the push bar and the guiding elements.
Además, el carro de empuje puede comprende sendas planchas laterales conectadas a las mordazas, y las planchas laterales del carro de empuje pueden estar unidas entre sí por un travesaño conectado a cada elemento lineal de empuje, y comprenden sendas partes superiores, estando cada parte superior conectada a una de las mordazas a través de una biela superior interior, y comprendiendo la biela superior interior una primera parte extrema articulada a dicha parte superior y una segunda parte extrema articulada a la mordaza. In addition, the push carriage can comprise two side plates connected to the jaws, and the side plates of the push carriage can be joined together by a crossbar connected to each linear push element, and comprise upper parts, each upper part being connected to one of the jaws through an inner upper connecting rod, and the inner upper connecting rod comprising a first end part articulated to said upper part and a second end part articulated to the jaw.
BREVE DESCRIPCIÓN DE LAS FIGURAS BRIEF DESCRIPTION OF THE FIGURES
A continuación se describen aspectos y realizaciones de la invención sobre la base de unos dibujos, en los que la figura 1 es una vista en perspectiva de una realización de una instalación de moldeo que comprende transportador de motas conforme a una realización de la presente invención; la figura 2 es una vista en alzado lateral de la instalación con el transportador de motas mostrada en la figura 1 ; la figura 3 es una vista en alzado lateral del otro lado de la instalación mostrada en la figura 2; la figura 4 es una vista en alzado lateral parcial del lado del transportador de motas mostrado en la figura 2; la figura 5 es una vista en alzado lateral parcial del lado del transportador de motas mostrado en la figura 3; la figura 6 es una vista parcial en planta superior del transportador de motas mostrado en la figura 1 ; la figura 7 es una vista parcial en planta inferior del transportador de motas mostrado en la figura 1 ; la figura 8 es una vista en planta superior de la estructura de la máquina de moldeo mostrada en la figura 1 ; la figura 9 es una vista en perspectiva de la zona de entrada del transportador de motas mostrado en la figura 1 ; la figura 10 es una vista en perspectiva antero-lateral de la estructura de soporte ubicada en la zona de salida del transportador de motas al transportador de cinta sincronizado, de acuerdo con la figura 1 ; la figura 1 1 es una vista en planta superior de la estructura de soporte mostrada en la figura 10; la figura 12 es una vista en alzado lateral de la estructura de soporte mostrada en la figura 10; la figura 13 es una vista en alzado lateral del carro de tiro de mordazas ubicado en la zona de salida del transportador de motas mostrado en la figura 1 ; la figura 14 es una vista en planta superior del carro de tiro de mordazas mostrado en la figura 13; la figura 15 es una vista en perspectiva antero-lateral del carro de arrastre de mordazas mostrado en las figuras mostrado en las figuras 13 y 14 montado en la estructura de soporte mostrada en las figuras 10-12; la figura 16 es una vista lateral del conjunto formado por el carros de arrastre de mordazas y las estructura de soporte mostrado en la figura 15; la figura 17 es una vista en planta superior del conjunto mostrado en la figura 15; la figura 18 es una vista en perspectiva superior frontal de la zona de salida del transportador de moldes al transportador de cinta sincronizado, de acuerdo con la figura 1 ; la figura 19 es una vista en alzado lateral de la zona de salida del transportador de moldes al transportador de cinta sincronizado, de acuerdo con la figura 1 ; la figura 20 es una vista en alzado frontal de la zona de salida mostrada en la figura 18; la figura 21 es una vista en sección por la línea A-A mostrada en la figura 19; la figura 22 es una vista parcial en planta superior de la zona de salida del transportador de moldes mostrada en la figura 18; la figura 23 es una vista en perspectiva superior del carro de empuje y del mecanismo de entrega que se encuentran en la zona de salida del transportador de moldes según una realización alternativa. Aspects and embodiments of the invention are described below on the basis of some drawings, in which Figure 1 is a perspective view of an embodiment of a molding installation comprising a conveyor according to an embodiment of the present invention; Figure 2 is a side elevational view of the installation with the speck conveyor shown in Figure 1; Figure 3 is a side elevation view of the other side of the installation shown in Figure 2; Figure 4 is a partial side elevation view of the side of the conveyor shown in Figure 2; Figure 5 is a partial side elevation view of the side of the conveyor shown in Figure 3; Figure 6 is a partial top plan view of the motorcycle conveyor shown in Figure 1; Figure 7 is a partial bottom plan view of the motorcycle conveyor shown in Figure 1; Figure 8 is a top plan view of the structure of the molding machine shown in Figure 1; Figure 9 is a perspective view of the entrance area of the speck conveyor shown in Figure 1; Figure 10 is an antero-lateral perspective view of the support structure located in the exit area of the belt conveyor to the synchronized belt conveyor, in accordance with Figure 1; Figure 1 1 is a top plan view of the support structure shown in Figure 10; Figure 12 is a side elevation view of the support structure shown in Figure 10; Figure 13 is a side elevational view of the jaw pull carriage located in the exit area of the motorcycle conveyor shown in Figure 1; Figure 14 is a top plan view of the jaw pull carriage shown in Figure 13; Figure 15 is an antero-lateral perspective view of the jaw drag carriage shown in the figures shown in Figures 13 and 14 mounted on the support structure shown in Figures 10-12; Figure 16 is a side view of the assembly formed by the jaw trailers and the support structure shown in Figure 15; Figure 17 is a top plan view of the assembly shown in Figure 15; Figure 18 is a front top perspective view of the outlet area of the mold conveyor to the synchronized belt conveyor, in accordance with Figure 1; Figure 19 is a side elevational view of the outlet area of the mold conveyor to the synchronized belt conveyor, in accordance with Figure 1; Figure 20 is a front elevation view of the exit area shown in Figure 18; Figure 21 is a sectional view along the line AA shown in Figure 19; Figure 22 is a partial top plan view of the outlet area of the mold conveyor shown in Figure 18; Figure 23 is a top perspective view of the thrust carriage and delivery mechanism that are located in the outlet area of the mold conveyor according to an alternative embodiment.
En estas figuras aparecen referencias numéricas que identifican los siguientes elementos: In these figures numerical references appear that identify the following elements:
1 transportador de motas 1 motorcycle conveyor
1 a zona de entrada  1st entrance area
1 b zona de salida  1 b exit zone
1 c carenado exterior  1 c outer fairing
2 estructura de la máquina de moldeo  2 molding machine structure
2a primera plancha horizontal  2nd horizontal horizontal plate
3 transportador de cinta sincronizado  3 synchronized belt conveyor
3a cinta transportadora  3rd conveyor belt
3b plancha protectora lateral c segunda plancha horizontald pata de apoyo 3b side protective plate c second horizontal iron support leg
parrilla de soporte support grill
a barra de parrilla longitudinalb chapa transversal delantera pórtico a longitudinal grill barb front transverse sheet
larguero inferior  lower beam
columna de apoyo lateral, 9 mordaza lateral support column, 9 jaw
a, 9a mordaza de entregaa, 9th delivery jaw
0 actuador0 actuator
1 marco en U1 U frame
1 a rama horizontal1st horizontal branch
1 b extremo superior1 b upper end
1 c aberturas1 c openings
2 husillo longitudinal2 longitudinal spindle
3 motor eléctrico3 electric motor
4 chapa protectora longitudinal4a planchas laterales4 longitudinal protective plate 4a side plates
5 barra de empuje5 push bar
6 acoplamiento6 coupling
7 elemento de guiado7 guiding element
8 travesaño de apoyo8 support crossbar
9 barra estabilizadora longitudinal0 chapa protectora9 longitudinal stabilizer bar 0 protective plate
1 rodillo transversal1 cross roller
2 primera barra de unión2 first tie bar
3 segunda barra de unión4 estructura de soporte3 second tie bar 4 support structure
4a soporte lateral4th lateral support
4b travesaño trasero4b rear crossbar
4c travesaño delantero4c front crossbar
4d larguero interior4d inner stringer
4e placa lateral de soporte 24f roldana interior 4e side support plate 24f inner sheave
24g eje de giro  24g turning shaft
24h placa longitudinal inferior 24h lower longitudinal plate
24i placa de soporte 24i support plate
24j elemento de nivelación  24j leveling element
24k placa de unión  24k junction plate
24I placa base  24I motherboard
24m ventana  24m window
25 carro de empuje  25 push car
25a brazos laterales  25th side arms
25b nervio de guiado exterior 25b outer guiding nerve
25c elemento de orejeta 25c lug element
25d travesaño frontal  25d front crossbar
25e travesaño posterior  25e rear crossbar
25f cajeado transversal  25f transverse pocket
25g paso de acoplamiento  25g coupling step
26 rodillo horizontal  26 horizontal roller
26a soporte de rodillo  26th roller support
26d placa transversal vertical 26d vertical cross plate
26f barra empujadora 26f pusher bar
27 biela de tiro de mordaza 27 jaw rod
27a articulación delantera 27th front joint
27b articulación trasera  27b rear joint
28 dispositivo transportador 28 conveyor device
28a cinta transportadora de residuos28th waste conveyor belt
28b rodillo transversal 28b cross roller
28c bastidor axial  28c axial frame
28d pata de apoyo  28d support leg
29 protector del rodillo horizontal 29 horizontal roller guard
30 cojinete anular 30 ring bearing
31 rodillo de apoyo  31 support roller
32 brazo de conexión  32 connection arm
MODOS DE REALIZAR LA INVENCIÓN De acuerdo con la realización mostrada en las figuras, el transportador de motas -1 - de la presente invención comprende una zona de entrada -1 a- por la que entran motas (no mostradas en las figuras) recibidas desde una máquina de moldeo que comprende una estructura -2-, y una zona de salida -1 b- desde la que las motas se entregan a una siguientes estación, por ejemplo a un transportador de cinta sincronizado -3- en sí convencional que comprende una cinta transportadora -3a- y planchas protectoras laterales -3b- que se extienden a lo largo de la cinta transportadora -3a-. Entre la estructura -2- y el transportador de motas -1 - está dispuesto un pórtico -5- que sujeta las partes superiores de las sucesivas motas conforme salen de la máquina de moldeo. El transportador de motas -1 - está unido a la estructura de la máquina de moldeo -2- mediante primeras barras de unión -22-, y al transportador de cinta sincronizado -3- mediante segundas barras de unión -23-. Entre la estructura de la máquina de moldeo -2- y la parrilla de soporte -4- está dispuesta una primera plancha horizontal -2a-, mientras que entre la parrilla de soporte -4- del transportador de motas -1 - y la cinta transportadora -3a- del transportador de cinta sincronizado -3- está dispuesta una segunda plancha horizontal -3c-. El transportador de cinta sincronizado -3- descansa sobre patas de apoyo -3d-. MODES OF CARRYING OUT THE INVENTION In accordance with the embodiment shown in the figures, the motor conveyor -1 - of the present invention comprises an input area -1 to - through which motorcycles (not shown in the figures) received from a molding machine comprising a structure -2-, and an exit zone -1b- from which the specks are delivered to a following station, for example to a conventional synchronized belt conveyor -3- comprising a conveyor belt -3a- and side protective plates -3b- that extend along the conveyor belt -3a-. Between the structure -2- and the conveyor of motorcycles -1 - a gantry -5- is arranged that holds the upper parts of the successive motorcycles as they leave the molding machine. The belt conveyor -1 - is connected to the structure of the molding machine -2- by means of first connecting bars -22-, and to the synchronized belt conveyor -3- by second joining bars -23-. Between the structure of the molding machine -2- and the support grill -4- a first horizontal plate -2a- is arranged, while between the support grill -4- of the speck conveyor -1 - and the conveyor belt -3a- of the synchronized belt conveyor -3- a second horizontal plate -3c- is arranged. The synchronized belt conveyor -3- rests on support legs -3d-.
La parrilla de soporte -4- comprende una pluralidad de barras de parilla -4a- longitudinales montadas fijamente en un bastidor que comprende largueros inferiores -6- laterales montados entre respectivas columnas de apoyo laterales -7-. En los extremos delanteros de las barras de parrilla longitudinales -4a- está montada una chapa transversal delantera -4b-. A lo largo de la parrilla de soporte -4- y en lados opuestos de la misma, se extienden respectivas mordazas -8, 9- transversalmente desplazables que forman parte de un mecanismo de mordazas longitudinalmente desplazable respecto de la parrilla de soporte -4-. Las mordazas -8, 9- están compuestas por respectivas pluralidades placas de apriete verticales longitudinalmente alineadas y conectadas entre sí. Las mordazas comprenden respectivas mordazas de entrega -8a, 9a- destinadas a entregar sucesivas motas al transportador de cinta sincronizado -3-. Los laterales del transportador de motas -1 - están protegidos por un carenado exterior -1 c- en sí convencional que, por motivos de claridad de los dibujos, sólo se muestra en la figura 9. El mecanismo de mordazas comprende una pluralidad de actuadores -10- que pueden ser, por ejemplo, neumáticos, hidráulicos, mecánicos o electromecánicos, que desplazan una -8- de las mordazas -8, 9- transversalmente entre una posición de apriete en la que las mordazas -8, 9- aprisionan las motas entre sí, y una posición de liberación en la que las mordazas -8, 9- no aprisionan las motas. Cada actuador -10- está montado en el extremo superior de una de las ramas verticales de un marco en U -1 1 - que comprende dos ramas verticales unidas interiormente por una rama horizontal -1 1 a- inferior. El extremo superior -1 1 b— libre de la otra rama vertical está unido a la mordaza -9- que está opuesta a la mordaza -8- a la que está acoplado el actuador -10-. Los actuadores -10- están superiormente protegidos por chapas protectoras transversales -20-. The support grid -4- comprises a plurality of longitudinal rod bars -4a- fixedly mounted on a frame comprising lower side beams -6- mounted between respective lateral support columns -7-. A front transverse plate -4b- is mounted on the front ends of the longitudinal grill bars -4a-. Along the support grid -4- and on opposite sides thereof, respective transversely movable jaws -8, 9- extend forming part of a longitudinally movable jaw mechanism with respect to the support grill -4-. The jaws -8, 9- are composed of respective plurality vertical clamping plates longitudinally aligned and connected to each other. The jaws comprise respective delivery jaws -8a, 9a- intended to deliver successive specks to the synchronized belt conveyor -3-. The sides of the conveyor of specks -1 - are protected by an external fairing -1 c- itself conventional which, for reasons of clarity of the drawings, is only shown in Figure 9. The jaw mechanism comprises a plurality of actuators -10- which can be, for example, pneumatic, hydraulic, mechanical or electromechanical, which move a -8- of the jaws -8, 9- transversely between a clamping position in which the jaws -8, 9- imprison the specks with each other, and a release position in which the jaws -8, 9- do not imprison the motes. Each actuator -10- is mounted on the upper end of one of the vertical branches of a U-1 frame 1 - which comprises two vertical branches internally joined by a horizontal branch -1-1 a-bottom. The upper end -1 1 b— free of the other vertical branch is connected to the jaw -9- which is opposite the jaw -8- to which the actuator -10- is coupled. The actuators -10- are superiorly protected by transverse protective plates -20-.
El transportador de motas -1 - comprende un mecanismo de vaivén para hacer avanzar el mecanismo de mordazas cuando las mordazas -8, 9- están en su posición de apriete y para hacer retroceder los mecanismos de apriete cuando las mordazas -8, 9- se encuentran en su posición de liberación. Para ello, las mordazas -8, 9- están soportadas sobre rodillos transversales -21 - que emergen lateralmente de la parrilla de soporte -4-. El mecanismo de vaivén comprende un sistema de empuje lineal que, en la realización mostrada en las figuras, comprende un husillo longitudinal -12- propulsado por un motor eléctrico -13- así como un carro de empuje -25- longitudinalmente conectado al sistema de empuje lineal debajo de la parrilla de soporte -4- y montado en la zona de salida -1 b- del transportador de motas -1 -. The conveyor of specks -1 - comprises a reciprocating mechanism to advance the jaw mechanism when the jaws -8, 9- are in their tightening position and to reverse the tightening mechanisms when the jaws -8, 9- are They find in their position of liberation. For this, the jaws -8, 9- are supported on transverse rollers -21 - emerging laterally from the support grid -4-. The reciprocating mechanism comprises a linear thrust system which, in the embodiment shown in the figures, comprises a longitudinal spindle -12- propelled by an electric motor -13- as well as a thrust carriage -25- longitudinally connected to the thrust system linear under the support grid -4- and mounted in the exit area -1 b- of the conveyor of specks -1 -.
El husillo longitudinal -12- está dispuesto en la cabecera de la estructura de la máquina de moldeo -2-, es decir, en una zona anterior a la zona de entrada -1 a- del transportador de motas -1 -, y conectado al carro de empuje -25- mediante una barra de empuje -15- longitudinal desplazable en vaivén y montada en el bastidor en un plano inferior a la parrilla de soporte. La barra de empuje -15- está compuesta por una pluralidad de secciones longitudinales, conectadas entre sí, y a su vez está conectada por uno de sus extremos al husillo -12- mediante un acoplamiento -16-. Además, la barra de empuje -15- está guiada longitudinalmente en oquedades axiales de elementos de guiado -17- montados en travesaños de apoyo -18- montados entre las columnas -7- de apoyo lateral. Los marcos en U -1 1 - están unidos por barras estabilizadoras longitudinales -19- laterales, La barra de empuje -15- pasa por el espacio libre entre las ramas verticales y el extremo superior -1 I b- de los marcos en U -1 1 -. The longitudinal spindle -12- is arranged at the head of the structure of the molding machine -2-, that is, in an area before the inlet area -1 a- of the conveyor -1 -, and connected to the Thrust carriage -25- by means of a longitudinally-movable longitudinal push-15-bar and mounted on the frame in a lower plane than the support grid. The push bar -15- is composed of a plurality of longitudinal sections, connected to each other, and in turn is connected by one of its ends to the spindle -12- by means of a coupling -16-. In addition, the push bar -15- is longitudinally guided in axial recesses of guide elements -17- mounted on support crossbars -18- mounted between the columns -7- of lateral support. The U-1 frames 1 - are joined by longitudinal stabilizer bars -19- lateral, The push bar -15- passes through the free space between the vertical branches and the upper end -1 I b- of the U-frames - eleven -.
Debajo de la parrilla de soporte -4-, y particularmente debajo de la barra de empuje -15-, está dispuesto un dispositivo transportador -28- que comprende una cinta transportadora de residuos -28a- propulsada por un motor eléctrico (no mostrado en las figuras) y guiada sobre rodillos transversales -28b- cuyos extremos están giratoriamente montados en un bastidor axial -28c- que a su vez está montado sobre patas de apoyo -28d-. La cinta transportadora de residuos-28a- recoge arena que se desprende de las motas que caen entre las barras de parilla -4a- durante el transporte de las motas. Para proteger la barra de empuje -15- y los elementos de guiado -17- frente a la caída de arena y de metal líquido, está prevista una chapa protectora longitudinal -14- Below the support grid -4-, and particularly below the push bar -15-, a conveyor device -28- is provided comprising a waste conveyor belt -28a- propelled by an electric motor (not shown in the figures) and guided on transverse rollers -28b- whose ends are rotatably mounted on an axial frame -28c- which in turn is mounted on support legs -28d-. The waste conveyor belt-28a- collects sand that is detached from the specks that fall between the grill bars -4a- during the transportation of the specks. To protect the push bar -15- and the guiding elements -17- against the fall of sand and liquid metal, a longitudinal protective plate -14- is provided.
El transportador de motas -1 - comprende además una estructura de soporte -24- unida a los largueros inferiores -6- del bastidor en la zona de salida -1 a- del transportador de motas -1 -. Esta estructura de soporte -24- comprende sendas parejas de soportes laterales -24a- cuyas partes superiores están unidas entre sí mediante un puente formado por una travesaño trasero -24b-, un travesaño delantero -24c- y dos largueros -24d- interiores. Los travesaños trasero y delantero -24b, 24c- están provistos de respectivos pasos longitudinalmente alineados entre sí. En la parte frontal del travesaño delantero -24c- y en la parte posterior del travesaño trasero -24b- está montados respectivos cojinetes anulares -30- alineados con los mencionados pasos. Por otra parte, entre los travesaños trasero y delantero -24b, 24c- está montado uno de los elementos de guiado -17-, La barra de empuje -15- se extiende a través de los pasos, los cojinetes anulares -30- y la oquedad interna del elemento de guiado -17-. Los extremos superiores de cada pareja de soportes laterales -24a- están unidos por una placa de unión -24k- en la que está montada una placa base -24I- solidaria a una placa lateral de soporte - 24e-. The motor conveyor -1 - further comprises a support structure -24- attached to the lower stringers -6- of the frame in the exit zone -1 a- of the motor transporter -1 -. This support structure -24- comprises two pairs of lateral supports -24a- whose upper parts are joined together by a bridge formed by a rear cross member -24b-, a front cross member -24c- and two inner stringers -24d-. The rear and front crossbars -24b, 24c- are provided with respective longitudinally aligned passages. In the front part of the front cross member -24c- and in the rear part of the rear cross member -24b- are fitted respective annular bearings -30- aligned with the mentioned steps. On the other hand, between the rear and front crossbars -24b, 24c- one of the guiding elements -17- is mounted, the thrust bar -15- extends through the passages, the annular bearings -30- and the internal cavity of the guiding element -17-. The upper ends of each pair of lateral supports -24a- are joined by a junction plate -24k- on which a base plate -24I- integral with a lateral support plate - 24e- is mounted.
Cada una de las placas laterales de soporte -24e- presenta en su cara interior de un paso de guiado longitudinal definido entre parejas de roldanas interiores -24f- montadas en respectivos ejes de giro -24g-. Los extremos inferiores de cada una de las parejas de soportes laterales -24a- están unidos entre sí mediante una placa longitudinal inferior -24h- que, a su vez, está acoplada, mediante una pluralidad de elementos de nivelación -24j- a dos placas inferiores de soporte -24i- que descansan en el suelo. Each of the support side plates -24e- has on its inner face a Longitudinal guide step defined between pairs of inner sheaves -24f- mounted on respective axes of rotation -24g-. The lower ends of each of the pairs of lateral supports -24a- are joined together by a lower longitudinal plate -24h- which, in turn, is coupled, by a plurality of leveling elements -24j- to two lower plates -24- resting on the floor.
Cada una de las placas laterales de soporte -24e- comprende una ventana -24m- que se extiende desde el borde superior de la placa lateral de soporte -24e- hacia la placa base -24I-. En ventana -24m- está localizado un soporte de rodillo -26a- en el que está montado un rodillo horizontal -26- con capacidad de giro en un eje de giro vertical (no mostrado en las figuras). El soporte de rodillo -26a- y el rodillo horizontal -24- están protegidos por un protector -29- dispuesto en la parte superior de la ventana -26- Each of the support side plates -24e- comprises a window -24m- extending from the upper edge of the support side plate -24e- towards the base plate -24I-. In window -24m- there is located a roller support -26a- in which a horizontal roller -26- with rotation capacity is mounted on a vertical axis of rotation (not shown in the figures). The roller support -26a- and the horizontal roller -24- are protected by a guard -29- arranged in the upper part of the window -26-
El carro de empuje -25- comprende dos brazos laterales -25a- longitudinales cuyas partes extremas están unidas entre sí por respectivamente por un travesaño frontal -25d- y un travesaño posterior -25e- que se encuentran en un plano inferior al plano horizontal en el que se extienden los brazos laterales -25a-. En la parte trasera del travesaño frontal -25d- está previsto un cajeado transversal -25f- que también está dispuesto debajo del plano horizontal de los brazos laterales -25a-. El cajeado transversal -25f- está previsto un paso de acoplamiento -25g- para el acoplamiento de la barra de empuje -15-. The thrust carriage -25- comprises two longitudinal lateral arms -25a- whose end portions are connected to each other respectively by a front cross member -25d- and a rear cross member -25e- which are located in a plane inferior to the horizontal plane in the which extend the lateral arms -25a-. At the rear of the front cross member -25d- a transverse recess -25f- is provided, which is also arranged below the horizontal plane of the lateral arms -25a-. The transverse recess -25f- is provided with a coupling step -25g- for the coupling of the push bar -15-.
En el extremo delantero de cada brazo lateral -25a- está montado un rodillo de apoyo -31 - para el acoplamiento de un brazos de conexión -32- que sirve para conectar la zona de salida -1 b- del transportador de motas -1 - con el transportador de cinta sincronizado -3-. Cada uno de los brazos laterales -25a- presenta además un nervio de guiado exterior -25b- que se extiende desde su extremo trasero hacia su extremo delantero. El carro de empuje -25- se desplaza en el paso de guiado longitudinal definido entre las roldanas interiores -24f- de la estructura de soporte -24- guiado por los nervios de guiado exteriores -25b-. Los rodillos horizontales -26- se apoyan en la superficie externa del respectivo nervio de guiado externo -25b- proporcionando así el guiado lateral del carro de empuje -25-. El carro de empuje -25- comprende dos elementos de orejeta -25c-, que comprenden sendas partes superiores y sendas partes inferiores. La parte inferior de cada plancha lateral -25c- es solidaria de uno de los brazos laterales -25a-, mientras que la parte superior de cada elemento de orejeta -25c- está articulada por una articulación delantera -27a- a un primer extremo de una biela -27- de tiro de mordaza. El segundo extremo de la biela -27- está a su vez articulado externamente en una de las mordazas de entrega -8a, 9a- mediante una articulación trasera. Por otra parte, la parte inferior de cada elemento de orejeta -25c- es solidaria de uno de los brazos laterales -25a-. At the front end of each side arm -25a- there is a support roller -31 - for the coupling of a connecting arms -32- which is used to connect the exit zone -1 b- of the motor conveyor -1 - with the synchronized belt conveyor -3-. Each of the lateral arms -25a- also has an outer guide rib -25b- which extends from its rear end towards its front end. The thrust carriage -25- moves in the longitudinal guide passage defined between the inner sheaves -24f- of the support structure -24- guided by the outer guiding ribs -25b-. The horizontal rollers -26- rest on the external surface of the respective external guide rib -25b- thus providing lateral guidance of the thrust carriage -25-. The push carriage -25- comprises two lug elements -25c-, comprising both upper parts and lower parts. The lower part of each side plate -25c- is integral with one of the lateral arms -25a-, while the upper part of each lug element -25c- is articulated by a front joint -27a- to a first end of a connecting rod -27- jaw. The second end of the connecting rod -27- is in turn articulated externally in one of the delivery jaws -8a, 9a- by a rear articulation. On the other hand, the lower part of each lug element -25c- is integral with one of the lateral arms -25a-.
En una realización alternativa, el carro de empuje -25- comprende dos planchas laterales -14a- que comprenden sendas partes superiores y sendas partes inferiores. La parte inferior de cada plancha lateral -14a- está conectada con un extremo lateral de la barra transversal empujadora -26f- mediante una biela inferior -27- articulada por unos de sus extremos en dicha parte inferior y, por el otro, en la barra transversal empujadora -26f-. Una placa transversal vertical -26d- trasera recibe el extremo libre de la barra de empuje -15- y una barra transversal empujadora -26f-. In an alternative embodiment, the push carriage -25- comprises two side plates -14a- comprising both upper parts and lower parts. The lower part of each side plate -14a- is connected to a lateral end of the pusher crossbar -26f- by a lower connecting rod -27- articulated by one of its ends in said lower part and, on the other, in the bar transverse pusher -26f-. A rear vertical transverse plate -26d- receives the free end of the push bar -15- and a pusher crossbar -26f-.
A su vez, la parte superior de cada plancha lateral -14a- está articulada a un primer extremo de una biela superior interna -28- cuyo extremo opuesto está a su vez articulado externamente en una de las mordazas -8, 9-. Por otra parte, la parte superior de cada plancha lateral -14a- está articulada a uno de los elementos de orejeta -25d- mediante una biela superior externa -29- (figura 17). Las articulaciones correspondientes comprenden respectivos pasadores -30- que constituyen ejes de giro transversales. In turn, the upper part of each side plate -14a- is articulated to a first end of an internal upper connecting rod -28- whose opposite end is in turn articulated externally in one of the jaws -8, 9-. On the other hand, the upper part of each side plate -14a- is articulated to one of the lug elements -25d- by means of an external upper connecting rod -29- (figure 17). The corresponding joints comprise respective pins -30- that constitute transverse axes of rotation.

Claims

REIVINDICACIONES
1 . Transportador de moldes que comprende una zona de entrada (1 a) de moldes y una zona de salida (1 b) de moldes, que comprende un bastidor en el que está montada una parrilla de soporte (4) para apoyo de una pluralidad de moldes en posiciones sucesivamente avanzadas, un mecanismo de mordazas longitudinalmente desplazable respecto de la parrilla de soporte (4), y comprendiendo sendas mordazas longitudinales (8, 8a; 9,one . Mold conveyor comprising an inlet area (1 a) of molds and an outlet area (1 b) of molds, comprising a frame on which a support grid (4) is mounted to support a plurality of molds in successively advanced positions, a longitudinally movable jaw mechanism with respect to the support grid (4), and comprising longitudinal jaws (8, 8a; 9,
9a) dispuestas en lados opuestos a lo largo de la parrilla de soporte (4), siendo al menos una de las mordazas (8, 8a; 9, 9a) transversalmente desplazable por una pluralidad de actuadores (10) entre una posición de apriete en la que las mordazas (8, 8a; 9, 9a) son susceptibles de aprisionar las motas entre sí, y una posición de liberación en la que las mordazas (8, 8a; 9, 9a) no aprisionan los moldes, un mecanismo de vaivén para hacer avanzar el mecanismo de mordazas cuando las mordazas (8, 8a; 9, 9a) están en su posición de apriete y para hacer retroceder los mecanismos de mordazas cuando las mordazas (8, 8a; 9, 9a) se encuentran en su posición de liberación, caracterizado porque las mordazas (8, 8a; 9, 9a) comprenden una pareja de mordazas de entrega (8a, 9a) dispuestas en la zona de salida (1 b) del transportador de moldes (1 ); el mecanismo de vaivén comprende un dispositivo de empuje dispuesto en la zona de salida (1 b) del transportador de moldes (1 ), comprendiendo el dispositivo de empuje sendos elementos de orejeta (25c) articulados a las mordazas de entrega (8a, 9a) mediante sendas bielas (27) de tiro de mordaza y estando conectado el dispositivo de empuje a medios de accionamiento que confieren movimiento de vaivén al dispositivo de empuje; el dispositivo de empuje es un carro de empuje (25) conectado a los medios de accionamiento mediante un sistema de empuje lineal que comprende al menos un elemento lineal de empuje; que comprende un elemento propulsor conectado a los medios accionamiento y dispuesto en una zona anterior a la zona de entrada (1 a) del transportador de moldes (1 ), y una barra de empuje (15) longitudinal que conecta el elemento propulsor al carro de empuje (25) y que se extiende linealmente debajo de la parrilla de soporte (4); el carro de empuje (25) está guiado horizontalmente en una estructura de soporte (24) para realizar un movimiento de avance y retroceso horizontal. 9a) arranged on opposite sides along the support grid (4), at least one of the jaws (8, 8a; 9, 9a) being transversely movable by a plurality of actuators (10) between a tightening position in that the jaws (8, 8a; 9, 9a) are susceptible to imprison the specks with each other, and a release position in which the jaws (8, 8a; 9, 9a) do not imprison the molds, a reciprocating mechanism to advance the jaw mechanism when the jaws (8, 8a; 9, 9a) are in their tightening position and to reverse the jaw mechanisms when the jaws (8, 8a; 9, 9a) are in their position release, characterized in that the jaws (8, 8a; 9, 9a) comprise a pair of delivery jaws (8a, 9a) arranged in the outlet area (1 b) of the mold conveyor (1); The reciprocating mechanism comprises a pushing device arranged in the outlet area (1 b) of the mold conveyor (1), the pushing device comprising two lug elements (25c) articulated to the delivery jaws (8a, 9a) by means of two connecting rod jaws (27) and the pushing device being connected to actuating means that confer reciprocating movement to the pushing device; the pushing device is a pushing car (25) connected to the means operated by a linear thrust system comprising at least one linear thrust element; comprising a propellant element connected to the drive means and arranged in an area anterior to the inlet zone (1 a) of the mold conveyor (1), and a longitudinal thrust bar (15) connecting the propellant element to the carriage of push (25) and extending linearly under the support grid (4); The push carriage (25) is guided horizontally in a support structure (24) to perform a horizontal forward and reverse movement.
2. Transportador de moldes según la reivindicación 1 , caracterizado porque los medios de accionamiento se encuentran en la máquina de moldeo. 2. Mold conveyor according to claim 1, characterized in that the drive means are in the molding machine.
3. Transportador de moldes según las reivindicaciones 1 y 2, caracterizado porque los medios de accionamiento comprenden un motor eléctrico (13), un husillo longitudinal (12) y una barra de cremallera. 3. Mold conveyor according to claims 1 and 2, characterized in that the drive means comprise an electric motor (13), a longitudinal spindle (12) and a rack bar.
4. Transportador de moldes según la reivindicación 1 , caracterizado porque el sistema de empuje lineal comprende un único elemento lineal de empuje que actúa sobre una parte transversal del carro de empuje (25). 4. Mold conveyor according to claim 1, characterized in that the linear thrust system comprises a single linear thrust element that acts on a transverse part of the thrust carriage (25).
5. Transportador de moldes según la reivindicación 1 , caracterizado porque la parte transversal del carro de empuje (25) es un travesaño frontal (25d) provisto de un cajeado transversal (25f) trasero en el que está acoplada la barra de empuje (15). 5. Mold conveyor according to claim 1, characterized in that the transverse part of the thrust carriage (25) is a front cross member (25d) provided with a rear transverse recess (25f) in which the thrust bar (15) is coupled .
6. Transportador de moldes según la reivindicación 1 , 4 ó 5, caracterizado porque el carro de empuje (25) comprende sendos brazos laterales (25a) unidos por al menos un travesaño posterior (25e) y un travesaño frontal (25d) ubicados debajo de la parrilla de soporte (4); cada uno de los brazos laterales (25a) presenta un nervio de guiado exterior (25b) longitudinal guiado en un paso de guiado longitudinal localizado en la estructura de soporte (24). 6. Mold conveyor according to claim 1, 4 or 5, characterized in that the thrust carriage (25) comprises two side arms (25a) joined by at least one rear cross member (25e) and a front cross member (25d) located below the support grill (4); each of the lateral arms (25a) has a longitudinal guided external rib (25b) guided in a longitudinal guided passage located in the support structure (24).
7. Transportador de moldes según la reivindicación 6, caracterizado porque la estructura de soporte (24) comprende sendas placas laterales de soporte (24e) superiores montadas en respectivas parejas de soportes laterales (24a), y porque en cada placa lateral (24e) están montadas roldanas (24f) superiores e inferiores que entre sí definen el paso de guiado longitudinal en el que se guía el respectivo nervio de guiado exterior (25b) del carro de empuje (25). 7. Mold conveyor according to claim 6, characterized in that the support structure (24) comprises upper side support plates (24e) mounted on respective pairs of side supports (24a), and because on each side plate (24e) they are mounted upper and lower rollers (24f) which together define the longitudinal guide passage in which the respective outer guide rib (25b) of the thrust carriage (25) is guided.
8. Transportador de moldes según la reivindicación 7, caracterizado porque cada placa lateral de soporte (24e) presenta una ventana (24m) en la que está montado un rodillo horizontal (26) con capacidad de giro en un eje de giro vertical que contacta una superficie externa del respectivo nervio de guiado externo proporcionando así un guiado lateral del carro de empuje (25). 8. Mold conveyor according to claim 7, characterized in that each support side plate (24e) has a window (24m) in which a horizontal roller (26) with rotation capacity is mounted on a vertical rotation axis that contacts a external surface of the respective external guide rib thus providing lateral guidance of the thrust carriage (25).
9. Transportador de moldes según la reivindicación 7 u 8, caracterizado porque las parejas de soportes laterales (24a) están unidas por un puente sobre el que se apoya la parilla de soporte (4), 9. Mold conveyor according to claim 7 or 8, characterized in that the pairs of side supports (24a) are connected by a bridge on which the support grill (4) rests,
10. Transportador de moldes según la reivindicación 9, caracterizado porque el puente comprende un travesaño trasero (24b) un travesaño delantero (24c), y un larguero interior (24d) y porque la barra de empuje se extiende a través del travesaño trasero (24b) y el travesaño delantero (24c). 10. Mold conveyor according to claim 9, characterized in that the bridge comprises a rear cross member (24b), a front crossbar (24c), and an inner crossbar (24d) and because the push bar extends through the rear cross member (24b ) and the front crossbar (24c).
1 1 . Transportador de moldes según una cualquiera de las reivindicaciones 1 a 10, caracterizado porque el husillo longitudinal (12) propulsado por un motor eléctrico (13) es montable en una estructura (2) de una máquina de moldeo que entrega los moldes al transportador de moldes (1 ). eleven . Mold conveyor according to any one of claims 1 to 10, characterized in that the longitudinal spindle (12) propelled by an electric motor (13) is mountable in a structure (2) of a molding machine that delivers the molds to the mold conveyor (one ).
12. Transportador de moldes según una cualquiera de las reivindicaciones 1 a 1 1 , caracterizado porque la barra de empuje (15) está guiada longitudinalmente en elementos de guiado (17) montados en el bastidor. 12. Mold conveyor according to any one of claims 1 to 1 1, characterized in that the push bar (15) is guided longitudinally in guiding elements (17) mounted on the frame.
13. Transportador de moldes según la reivindicación 12, caracterizado porque al menos algunos de los elementos de guiado (17) son cuerpos huecos con respectivas oquedades axiales por las que pasa la barra de empuje (15). 13. Mold conveyor according to claim 12, characterized in that at least some of the guiding elements (17) are hollow bodies with respective axial cavities through which the push bar (15) passes.
14. Transportador de moldes según una cualquiera de las reivindicaciones 1 a 13, caracterizado porque el husillo longitudinal (12) propulsado por un motor eléctrico (13) se encuentra conectado a la barra empuje (15). 14. Mold conveyor according to any one of claims 1 to 13, characterized in that the longitudinal spindle (12) propelled by an electric motor (13) is connected to the push bar (15).
15. Transportador de moldes según una cualquiera de las reivindicaciones 1 a 14, caracterizado porque el husillo longitudinal (12) propulsado por un motor eléctrico (13) comprende una barra de cremallera longitudinal conectada a la barra empuje (15) y un piñón que engrana en la cremallera. 15. Mold conveyor according to any one of claims 1 to 14, characterized in that the longitudinal spindle (12) propelled by an electric motor (13) comprises a longitudinal rack bar connected to the push bar (15) and a gear pinion on the zipper
16. Transportador de moldes según una cualquiera de las reivindicaciones 1 a 15, caracterizado porque comprende un dispositivo transportador (28) que comprende una cinta transportadora de residuos (28a) propulsada por un motor eléctrico y dispuesta debajo de la parrilla de soporte (4). 16. Mold conveyor according to any one of claims 1 to 15, characterized in that it comprises a conveyor device (28) comprising a waste conveyor belt (28a) propelled by an electric motor and arranged under the support grid (4) .
17. Transportador de moldes según la reivindicación 16, caracterizado porque la cinta transportadora de residuos (28a) está dispuesta al menos debajo del carro de empuje (25) y a lo largo de toda la cinta transportadora (3a) de enfriamiento. 17. Mold conveyor according to claim 16, characterized in that the waste conveyor belt (28a) is arranged at least below the thrust carriage (25) and along the entire cooling conveyor belt (3a).
18. Transportador de moldes según ¡a reivindicación 1 , caracterizado porque el carro de empuje (25) comprende sendas planchas laterales (14) conectadas a las mordazas (8, 9). 18. Mold conveyor according to claim 1, characterized in that the thrust carriage (25) comprises two side plates (14) connected to the jaws (8, 9).
19. Transportador de moldes según ¡a reivindicación 18, caracterizado porque las planchas laterales (14) del carro de empuje (25) están unidas entre sí por un travesaño (26f) conectado a cada elemento lineal de empuje (12, 15), y comprenden sendas partes superiores; 19. Mold conveyor according to claim 18, characterized in that the side plates (14) of the thrust carriage (25) are joined together by a crossbar (26f) connected to each linear thrust element (12, 15), and they comprise upper parts;
cada parte superior está conectada a una de las mordazas (8, 9) a través de una biela superior interior (28);  each upper part is connected to one of the jaws (8, 9) through an inner upper connecting rod (28);
la biela superior interior (28) comprende una primera parte extrema articulada a dicha parte superior y una segunda parte extrema articulada a la mordaza (8, 9).  the inner upper connecting rod (28) comprises a first end part articulated to said upper part and a second end part articulated to the jaw (8, 9).
PCT/ES2013/070326 2012-05-29 2013-05-23 Mould conveyor WO2013178849A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
PL13797860T PL2859971T4 (en) 2012-05-29 2013-05-23 Mould conveyor
ES13797860.7T ES2637234T3 (en) 2012-05-29 2013-05-23 Mold conveyor
CN201380039778.7A CN104768678B (en) 2012-05-29 2013-05-23 Mold conveyer
US14/404,716 US9365355B2 (en) 2012-05-29 2013-05-23 Mould conveyor
EP13797860.7A EP2859971B1 (en) 2012-05-29 2013-05-23 Mould conveyor
IN2632MUN2014 IN2014MN02632A (en) 2012-05-29 2013-05-23
DK13797860.7T DK2859971T3 (en) 2012-05-29 2013-05-23 Form Feed.

Applications Claiming Priority (4)

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ES201230812A ES2442975B1 (en) 2012-05-29 2012-05-29 Mold conveyor
ESP201230812 2012-05-29
ESP201231454 2012-09-19
ES201231454A ES2456778B1 (en) 2012-09-19 2012-09-19 Refinements introduced in the patent by mold conveyor

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DK2859971T3 (en) 2017-08-21
PL2859971T3 (en) 2017-12-29
CN104768678A (en) 2015-07-08
CN104768678B (en) 2016-10-26
EP2859971B1 (en) 2017-04-19
EP2859971A1 (en) 2015-04-15
US20150107962A1 (en) 2015-04-23
ES2637234T3 (en) 2017-10-11
PL2859971T4 (en) 2017-12-29
EP2859971A4 (en) 2015-12-23
US9365355B2 (en) 2016-06-14

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